Method of affixing tablets for sound-records.



PATENTED JAN". 3, 1905.;

I E. R. JOHNSON. METHOD OF AFFIXING TABLETS'TO SOUND RECORDS.

APPLICATION FILED OCT. 22. 1993.

7 I INVENTUH a Jmm BY flWaa/BZZZZ ATTORNEY.

WITNESSES I (Swim M UNTTnn STATES nLmnDon n. JOHNSON, or PHILADELPHIA, PENN-'5 TO VICTOR TALKING MACHINE JERSEY.

Patented. January 3, 1905.

PATENT omen YLVANlA, ASSIGNOR COMPANY, A CORPORATlGh OF NEW SPECIFICATION forming part of Letters Patent li'o.

weer/c, dated January 3, 1905.

Application filed October 22, 1.903; Serial-N0. 177,998.

To It whmn if may concern: I

Be it known that I, Ennninon R. JonNsoN,

a citizen of the United States, and a resident of the city of Philadelphia, State of Pennsyl- 5, Vania, have invented certain new and useful Improvements in Methods of Aifixing Tablet-s to Sound-Records, and particularly to Flat -Disk Records, of which the following is a full, clear, and complete disclosure.

The object of my'invention is to provide a method by which these tablets can be aflixed to sound-records in an inexpensive and convenient manner and which when soIailEixed will not project beyond the surface thereof and will afford means for carrying identify ing marks or characters"contrasting in such a mannerwith the sound-record as to be easily and readily legible. l

InUnited States Letters granted September 22, 1903-, for sound-rec- 0rd upon an application made by myself is shown a sound-record and affixed tablet made by the method forming the subject of this application. I

In the accompanying drawings l have shown one form of apparatus by means of which my method can be practiced, although it is to. be understood that other apparatus may be employed, since this apparatus is selected as a good example for the purpose of illustrating my novel method.

In said drawings, Figure 1 is a view in perspective, showing the manner in which the lower die-plate, matrix, and tablet are. asseni-' bled. Fig. 2 is a secti rious parts assembled betw onal view of the vaing to'my method. Fig.3 is a central sectionalclevation of the record with the tablet 4 applied thereto. Fig. 4t is a central sectional elevation of the various parts assembled as in Fig. 2 when a tablet-platc is employed. The material of which a sound-record is made, as is well knowmsoftens under the application of heat, and in this method 1 make use of this property of the inatcrialthat to say, I soften a sound-record by-the' application of heat an lwhilethc same is in a semi een the upper and lower die-plate in ailixing the tablet accord' plastic or'gelatinous state I impress'into the surface thereof a tablet, so that when the rec- 5 ord hardens after the Withdrawal of the heat said tablet is wholly within the confines of the record, or, in other words, is flush with or below'the surface of the record, and as a further step of my method, although my invcntion is not limited thereto, I make use of the adhesive character of the material com-- posing the sound-record wlten the same is softened by the application of. heat, so that of and into intimate contact with the plastic or gelatinous record it v adheres thereto witl out the employment of other adhesive means.

It is well known that the record-grooves A of the sound-record disk B, Fig. 3, are made by assembling the materialforming'thc record, which has been previously heated and rendered plastic, with a matrix and subjectingthe same to pressure, and my method can be carried out at the same time. For instance, in Fig. l I show a lower die-plate C and a. matrix D thereon, While upon the central por tion of the matrix is the tablet E, which it is desired to afiix to the sound-record by my method, the centering-pin F, rising from the lower die-plate C, passing through the ma .trix D and tablet E.

A layer of material of whichthe record is formed having been heated and rendered plastie is placed upon the matrix and tablet, as shown at Bin Fig. 2, and then the upper dieplate G is placed upon the plastic material, being held in placeby the dowel-pins H entering sockets J in the lower die-plate C. the centering-pin F passing into an opening K in the upper die-plate Ur. When thus assem bled, these parts are subjected to pressure in a suitable press, and" after being removed therefrom and separated the record-grooves are impressed into the soundrecord. The tablet E is also impressed into the surface of said sound-record and is permanently aiiixcd thereto, either l'lush or be ow the surface thereof.

'ln practicing the method as above described the face of the tablet is practically flush with by impressing the tablet into thesurface there- 6 v the face of the record; butI also in some cases depress thetablet-surface-below that of the record, as illustrated in Fig. 4. In this case in assembling the parts a tablet-plate L, having a central opening for the centering-pin, is placed upon the matrix, and the tablet-plate E upon said plate L, with the face of the latter next to the tablet either plain, embossed, or engraved, as shown in Fig. 4, in which latter case the tablet so depressed would likewise .be engraved or embossed. When the parts th'us assembled are subjected to pressure, the tablet-plate L depresses the tablet E below the surface of the record B, whereby in use the tablet is protected.

It is obvious that the shape of the tablet is immaterial and that it may be made of various materials-for instance, paper or any other suitable materialand that the identifyingmarks can be applied thereto in any manner desired.

Having thus described my invention, what I claim, and. desire to protect by Letters Patent of the United States, is

1. The herein-described method of affixing a tablet to a sound-record, composed of a material, which softens under the application of heat, which consists in softening the record by the application of heat, and impressing a tablet into the surface thereof.

2. The herein-described method of affixing a tablet to asound-record composed of a material which softens and becomes adhesive under theapplication of heat, whigh consists insoftening and making the record adhesive by the application of heat, and impressing'a tablet into the surface thereof;

The herein-described method of affixing a'tablet to a sound-record composed of a material, which is gelatinous when heated and hardens when cold, which consists in neating the said disk and impressing a tablet into the surface thereof to be held therein solely by the adhesion of such material.

4;. The hereinbefore described method of alfixing tablets to record-disks, which comprises the followingsteps: first, interposinga and the plastic material from which the record is to be formed; second, forcing the material into intimate contact with the matrix and tablet by subjecting the same to pressure.

. 6. The hereinbefore-described method of affixing tablets to record-disks, which coniprises the following steps: first, interposinga tablet and an engraved tablet-plate between the matrix and the plastic material from which the record is to be formed; second, forcing the material into intimate contact with the matrix and tablet by subjecting the same to pressure. a

7. The hereinbefore-described' method of labeling sound-record disks, which comprises the following steps: first, interposing a tabletplate between the matrix and the plastic material from which the record is to be formed; second, forcing the material into intimate contact with the matrix and the tablet-plate by subjecting the same to pressure.

In witness whereof I have hereunto set my handthis 6th day of October, A. D. 1903.

I ELDRIDGI'E R. OI-INSON.

Witnesses:

LEWIS H. VAN DUSEN, CHAS. K. BENNETT. 

